. >> reporter: gonzalez suspects what may be happening now is in the obama administration is a quote, interagency scrum where some are pushing for a quick mirandizing. others may be advocating a delay so as much information as possible can be garnered, martha. martha: no doubt there is big discussion going on either way. the older brothers trip to chechnya in 2011 is getting a lot of attention. what can we learn about that, doug? >> reporter: we learned a bait of new information about that when the fbi tried to trace the elder tsnaraev's trip to russia and chechnya, the trail went cold for the most mundane much reasons. listen up. >> he went over to russia butp a parently when he got on the aeroflot plane, they misspelled his name so it never went into the system that he actually went to russia. >> reporter: others suggested they got all the radical indock operation -- indoctrination around the block from their boston home. >> you can point to radical imams here and there they put on their facebook pages. you about the fact they lived a few blocks away from a very controversial radica